below. If we den ote entire population after the diet, find for Mo-Ms the mean weight for the the diet and Ms. 95% confidence interval as Mo before the the

Professor Ramos has a packing plant in a machine packs carton with jars. A sales person claims that the machine she is selling will pack faster to test the claim the times It takes each machine to pack 10 cartons are recorded in seconds and the results are shown below population one new machine n=10 Mean =42.3 s=0.685 Present machine n=10 mean=43.23 S =0.750.Do the data provide significant evidence to conclude that on the average the new machine packs faster perform the required hypothesis test in the 5% level of significance assume the population standard deviation's are equal but unknown show all your steps setting up your null  and alternative hypothesis.

Please help me asap. Thank you

Student Satisfaction sent from average to the 60th percentile (z score = .2533). Dr. Reed wants to know the projected impact on test scores.  All she knows is that Student Satisfaction and Student Test scores are correlated at .43 and the current average test score is 81% with a standard deviation of 5%.  Show your work

The value of Beta with hat on top =2.8 is a statistic. True or false. Explain.

he average amount of time boys and girls  spend playing sports each week is believed to be the same. A sample of equal size n is taken from boys and girls , the mean of the boys is 29 hours  with standard deviation 4  hours and the mean of the girls  is 27 hours with standard deviation 3 hours Both populations have a normal distribution. The calculated value is  1.2       n =